Title :
Real-time high-sensitivity sensing of liquid films in microfluidic channels with optofluidic microresonators
Author :
Grad, M. ; Tsai, C.C. ; Yu, M. ; Kwong, D.L. ; Wong, C.W. ; Attinger, D.
Author_Institution :
Lab. for Microscale Transp. Phenomena, Columbia Univ., New York, NY, USA
Abstract :
We demonstrate integrated optical ring resonators as time-resolved sensors with 3.2×10−5 refractive index unit sensitivity embedded in microfluidic channels. Furthermore, we report the chip-scale detection of segmented flow with different liquid-film thicknesses and capillary numbers.
Keywords :
Biosensors; Microcavities; Microfluidics; Optical films; Optical refraction; Optical resonators; Optical sensors; Optical variables control; Optical waveguides; Sensor phenomena and characterization;
Conference_Titel :
Lasers and Electro-Optics (CLEO) and Quantum Electronics and Laser Science Conference (QELS), 2010 Conference on
Conference_Location :
San Jose, CA, USA
Print_ISBN :
978-1-55752-890-2
Electronic_ISBN :
978-1-55752-890-2
